1' of irrigation test results...do you guys water this much too??

Mofo2713(North Dallas 7B)May 21, 2012

So I finally got around to dropping tuna cans on the lawn last night and the results were pretty shocking to say the least.

I have a total of 7 zones in my yard...1 zone is just flowers.

So of the 6 zones dedicated to the lawn, I was only under watering in 5 of them!! HAHA

Zone 2 is on the south side of the house which gets sun all day long. I had it going for 36 minutes total and got a measly 1/2" of water. These are all static heads and the output isnt that strong since the strip I am covering is really long but only about 8-9 feet wide.

Zones 3 and 4 are in the front yard and was watering those for 42 min each. These are all rotary heads. Needless to say, I only got about 1/2 out of them as well.

Zone 5 is the north side of the house and I did 24 min total there. Actually this was the one zone where it was full so I am cutting back to 21 min here.

Zones 6 and 7 are the back yard with rotary heads. Each zone was going 39 min and 1 can was 1/2" full and the other was about 3/8" .

So in conclusion, I see what you guys are talking about when you say your water bills are insane in the hot summer months! I thought I would be a lot closer to 1" than what I actually was. I was starting to see some areas like what MW has that side by side picture of. Grass blade shrink up and get real wirey.

So now I have everything close to what it should be. I will do the test again next weekend and make minor adjustments as needed. So with my yard being right about 6k sq ft and my new calculations I will be watering a total of 426 MINUTES (7 hours and 6 min). I mean I know the tuna cans dont lie but it sure as hell shocked me to see that. I will also alter the tuna cans slightly next week and test from different parts of each zone to make sure my results arent skewed by a number of factors.

Does this seem pretty high to anyone else or am I in line with other people?

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Mofo2713(North Dallas 7B)

Sorry, title meant to say 1", not 1 foot! HAHA

    Bookmark   May 21, 2012 at 11:54AM
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I have an acre of lawn. And a hose and a sprinkler. But, yeah, for an inch, it takes over 6 hours with the max area sprinkler that I use.

    Bookmark   May 24, 2012 at 4:16PM
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Actually that is not bad application rates. 1 hour per zone is a good design goal.

Trick is to not try to do it all in 1-day. You want to start around 5:30 am, an hour before sun rise. Water as many zones as you can until 10:am. Repeat next day on remaining zones.

    Bookmark   May 24, 2012 at 4:54PM
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dchall_san_antonio(8 San Antonio)

I measured mine yesterday at the new house. I put real rain gages next to the oscillator sprinkler and left it on for 2 hours. I got 0.6 inches of water. I have a 2-hour hose timer so I turn it on in the morning and again in the evening or lunch. Every system is different. Some can put out an inch in 15 minutes.

Watch your lawn to see when you need to water again. Don't just leave it on the schedule you had. After you apply deeper, it might last longer. The grass will tell you. Also since you are Dallas, the winds sometimes are humid from the south and sometimes dry from everywhere else. Keep an eye on that and when the winds are dry, you might need to water sooner.

    Bookmark   May 24, 2012 at 11:23PM
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